Solicitação de exame técnico
#4.1
12/06/1988
RPI 946
Application data
Number
PI8705722Type
Filing
Publication
The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 12/06/1988. We update with every new RPI gazette, published weekly.
Applicants
Electro Aço Altona S/A
SC, BR
Inventors
H. G. (pessoa física)
BR
W. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
12/06/1988
RPI 946
#4.2
08/09/1988
RPI 929
#3.2
03/15/1988
RPI 908
#2.1
02/23/1988
RPI 905
#21.1
Patente extinta em 27/10/2002
07/29/2008
RPI 1960
#16.1
09/24/1996
RPI 1347
#13.1
03/12/1996
RPI 1319
#9.1
10/03/1995
RPI 1296
#6.1
03/14/1995
RPI 1267
#7.1
07/19/1994
RPI 1233
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.